Case 3

Date : 31 Januari 2012
Title     : -
Level     : -
Genre     : Puzzle
CM        : Squal Laguna

There are 10 two-seater cars attached to the fair’s ferris wheel. The ferris wheel turns so that one car rotates through the exit platform every minute.
The wheel began operation at 10 in the morning and shut down 30 minutes later.

What’s the maximum number of people that could have taken the ride on the wheel in that time period? 

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